In the Old Chateau you can find Gastly, Haunter, Gengar and Rotom. Haunter and Gengar will only appear if you have a Generation III (GBA) game in your DS' dual slot. Rotom can only be seen in a room with a TV at night and only if you have unlocked the National Pokedex in Pokemon Diamond and Pearl.
The Old Chateau is where you find the Legendary Pokemon Rotom
The only Pokemon you can find in the old chateau are gastly and Rotom.
ROTOM! you can find the plasma Pokemon in the tv of the old chateau!!!
The old chateau is in diamond and pearl
there is one in the old chateau in etrna forest
You find ghost Pokemon and rotom. And if you have any Pokemon game in your gameboy slot you can also find gengar.
yes, the old chateau contains wild ghost types AND a free old geateau, too! Its like a moomoo milk!
You wil find Rotom if you watch the TV at nighttime.
It is in the forest you pass through to get to Eterna City.
go to the old chateau at night and thump the tv
Number 152 it's Rotom you can find it by talking the TV in old chateau (it has to be at night) Old Chateau is in Eterna Forest at the northwest of Floaroma town Hope i helped Source:Brain
you find her in the old chateau